CN105642316A - Method for preparing BiOI / CdWO4 heterojunction photocatalyst - Google Patents
Method for preparing BiOI / CdWO4 heterojunction photocatalyst Download PDFInfo
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- CN105642316A CN105642316A CN201510975834.9A CN201510975834A CN105642316A CN 105642316 A CN105642316 A CN 105642316A CN 201510975834 A CN201510975834 A CN 201510975834A CN 105642316 A CN105642316 A CN 105642316A
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 14
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims abstract description 21
- 238000006731 degradation reaction Methods 0.000 claims abstract description 10
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229940043267 rhodamine b Drugs 0.000 claims abstract description 7
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 claims abstract description 5
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims abstract description 5
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical compound [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 claims description 24
- 229910052793 cadmium Inorganic materials 0.000 claims description 17
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 16
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 claims description 16
- 238000013019 agitation Methods 0.000 claims description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- 229960004839 potassium iodide Drugs 0.000 claims description 6
- 235000007715 potassium iodide Nutrition 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002114 nanocomposite Substances 0.000 abstract description 4
- 229910052723 transition metal Inorganic materials 0.000 abstract description 3
- -1 transition metal tungstate Chemical class 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 abstract 2
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 description 8
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000002957 persistent organic pollutant Substances 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- ORZGULPODBRYCV-UHFFFAOYSA-M bismuth;oxygen(2-);iodide Chemical compound [O-2].[I-].[Bi+3] ORZGULPODBRYCV-UHFFFAOYSA-M 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 229910002900 Bi2MoO6 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a transition metal tungstate, and in particular to a method for preparing a BiOI / CdWO4 heterojunction composite photocatalyst. The method uses bismuth nitrate, sodium tungstate, potassium iodide and chromium acetate as raw materials for preparing the BiOI / CdWO4 heterojunction composite photocatalyst. The prepared nano-composite photocatalyst has excellent visible light catalytic activity, especially a sample supplemented with 1.5mmol of bismuth nitrate has the best activity in degradation of rhodamine B, and reaches degradation rate of 90% after 90min of visible reaction, and has higher degradation activity than pure BiOI and CdWO4.
Description
Technical field
The present invention relates to transition metal tungstate, refer in particular to one and prepare BiOI/CdWO4The method of heterojunction composite photocatalyst, prepares BiOI/CdWO by raw material of Bismuth trinitrate, sodium wolframate, potassiumiodide and chromium acetate4The method of heterojunction composite photocatalyst, especially a kind of preparation technology is simple, and product has the nano composite photo-catalyst preparation method of good visible light catalysis activity.
Background technology
Since 21st century, the excessive use of fossil energy result in the havoc of global environment, and therefore the development and utilization of green energy resource has become one of the most important challenge that the current mankind face; Semiconductor light-catalyst technology degradable organic pollutant is a technology having very much application future, this technology can realize the conversion of sun power to chemical energy, and organic pollutant is carried out degradation treatment by nonpolluting method, semi-conductor is subject to the direct impact of absorption spectrum, photogenerated charge transfer, bandgap structure and stability in photocatalytic degradation performance, and it is a kind of very promising for therefore designing novel heterogeneous joint semiconductor catalyst.
Cadmium tungstate (CdWO4) it is known solar hydrogen making semi-conductor the earliest, but, due to CdWO4Energy gap wider (being approximately 3.2eV) can only to UV-light (approximately only accounting for the 5% of sunlight) produce responding ability, this strongly limits CdWO4Photoelectric transformation efficiency; Bismuthyl iodide is a kind of semiconductor material with very narrow energy gap, and cadmium tungstate has well energy band coupling, and theory has good photocatalysis effect; Bismuthyl iodide has the performance promoting photogenerated charge transmission and enhancing organic pollutant degradation between different semi-conductor, and Graphene has been applied to BiOI/C as excellent electric charge transmission medium3N4And BiOI/Bi2MoO6Heterogeneous joint photocatalyst; Research finds, CdWO4Visible light photocatalysis performance obtain remarkable enhancing by carrying out being compounded to form heterogeneous joint with low-gap semiconductor, such as; C3N4/CdWO4And CdS/CdWO4Deng, this wherein effectiveness comparison be significantly teacher TianNa team design a kind of novel C3N4/CdWO4Heterogeneous joint photocatalyst, and the composition of wherein heterogeneous joint improves the transfer efficiency efficiency of conversion of electric charge, and C3N4/CdWO4Heterojunction structure can improve the absorption of cadmium tungstate visible ray further, and this kind of unique heterojunction structure can effectively promote charge separation efficiency, finally transfers on low-gap semiconductor, so passing through C again3N4/CdWO4Heterojunction photocatalyst can effectively promote electronics to be separated with hole, improve photocatalytic activity and the degraded of organic pollutant.
Summary of the invention
It is an object of the present invention to provide the high efficiency photocatalyst based on transition metal tungstate prepared by a kind of two one-step hydrothermals, it is achieved the method for the nano composite photo-catalyst of photocatalytic degradation rhodamine B under visible ray.
The present invention is realized by following step:
(1) cadmium tungstate dispersion is added potassiumiodide and Bismuth trinitrate in deionized water afterwards, after ultrasonic agitation is uniformly dispersed, after filtration, washing, oven dry, obtain BiOI/CdWO4Heterojunction composite photocatalyst.
Further, the power of ultrasonic agitation is 100W, and churning time is 30 minutes.
Further, the mol ratio of Bismuth trinitrate and cadmium tungstate is 1.0-2.0:1.
Further, the mol ratio of Bismuth trinitrate and cadmium tungstate is 1.5:1.
Further, the mol ratio of Bismuth trinitrate and potassiumiodide is 1:1.
Further, the preparation method of described cadmium tungstate is as follows: get chromium acetate solution, obtains mixing solutions, stir after evenly and carry out hydro-thermal reaction in the solution of the sodium wolframate joined etc. mole, hydro-thermal reaction 24 hours at 160 DEG C, after reaction terminates, by sedimentation and filtration, washing, dries, obtains cadmium tungstate.
(2) BiOI/CdWO prepared by the present invention4Heterojunction composite photocatalyst, crystallization is complete, shape looks rule, favorable dispersity.
(3) utilize the instruments such as X-ray diffractometer (XRD), transmission electron microscope (TEM), x-ray photoelectron spectroscopy instrument that product carries out structural analysis, taking rhodamine B solution as target dyestuff carries out photocatalytic degradation experiment, measured by ultraviolet-visible spectrophotometer.
Accompanying drawing explanation
Fig. 1 is prepared BiOI/CdWO4Heterojunction composite photocatalyst, BiOI and CdWO4XRD diffraction spectrogram.
Fig. 2 is prepared BiOI/CdWO4The transmission electron microscope photo figure of heterojunction composite photocatalyst.
Fig. 3 is prepared BiOI/CdWO4The x-ray photoelectron spectroscopy figure of heterojunction composite photocatalyst.
Fig. 4 is prepared BiOI/CdWO4Heterojunction composite photocatalyst cyclicity experiment figure.
Fig. 5 is prepared BiOI/CdWO4The time m-degradation rate graph of a relation of the visible light photocatalytic degradation rhodamine B of heterojunction composite photocatalyst.
Fig. 6 is CdWO4, BiOI and BiOI/CdWO4The measurement schematic diagram of heterojunction composite photocatalyst UV-visible absorbance.
Embodiment
Embodiment 1BiOI/CdWO4The preparation of nanometer rod
Solution containing 1mmol chromium acetate joins in the solution containing 1mmol sodium wolframate, carries out hydro-thermal reaction, hydro-thermal reaction 24 hours at 160 DEG C after ultrasonic magnetic agitation is even, after reaction terminates, by sedimentation and filtration, washing, and drying obtains cadmium tungstate under 60 DEG C of conditions; Get and prepare cadmium tungstate dispersion in deionized water, the potassiumiodide added etc. when stirring mole and Bismuth trinitrate, the mol ratio of control Bismuth trinitrate and cadmium tungstate is respectively 1.0,1.5 and 2.0, ultrasonic agitation be uniformly dispersed after precipitate with deionized water and ethanol clean, filter, in thermostatic drying chamber, 60 DEG C of oven dry, obtain BiOI/CdWO4Heterojunction composite photocatalyst.
Embodiment 2BiOI/CdWO4The phenetic analysis of heterojunction composite photocatalyst
As shown in Figure 1, as can be seen from the figure, sample after compound has BiOI and CdWO simultaneously4Characteristic peak, illustrate that we successfully have prepared BiOI/CdWO4Heterojunction composite photocatalyst.
As shown in Figure 2, (A) figure can see the CdWO of nano bar-shape4The nano particle BiOI that area load is irregular.
As shown in Figure 3, collection of illustrative plates shows the existence of Bi, O, I, Cd, W and O element.
As shown in Figure 4, figure shows heterojunction BiOI/CdWO4Testing in the cyclicity through four times, catalyst performance does not obviously reduce, and proves that the catalyzer that we synthesize has very strong stability.
Embodiment 3BiOI/CdWO4The visible light catalysis activity experiment of heterojunction composite photocatalyst
(1) compound concentration is the rhodamine B solution of 10mg/L, and the solution prepared is placed in dark place.
(2) BiOI/CdWO is taken4Heterojunction composite photocatalyst 100mg is (as BiOI and CdWO4Mol ratio be 1:1, the sample that 1.5:1 and 2.0:1 obtains is designated as BC-1.0 respectively, BC-1.5, BC-2.0), it is placed in photo catalysis reactor respectively, adds the target degradation solution that 100mL step (1) prepares, after magnetic agitation 30min photocatalyst to be composite is uniformly dispersed, open water source, light source, carry out photocatalytic degradation experiment.
(3) every 10min draws the photocatalytic degradation liquid in reactor, for the measurement of UV-visible absorbance after centrifugal.
(4) prepared as seen from Figure 5 nano composite photo-catalyst has excellent visible light catalysis activity, especially the amount adding Bismuth trinitrate for the sample degradation rhodamine B activity of 1.5mmol best, after visible ray reaction 90min, degradation rate reaches 90%, than pure BiOI and CdWO4Degrading activity all wants high.
Claims (6)
1. prepare BiOI/CdWO for one kind4The method of heterojunction photocatalyst, the CdWO of nano bar-shape4The nano particle BiOI that area load is irregular, it is characterised in that: cadmium tungstate dispersion is added potassiumiodide and Bismuth trinitrate in deionized water afterwards, after ultrasonic agitation is uniformly dispersed, after filtration, washing, oven dry, obtains BiOI/CdWO4Heterojunction photocatalyst.
2. one as claimed in claim 1 prepares BiOI/CdWO4The method of heterojunction photocatalyst, it is characterised in that: the power of ultrasonic agitation is 100W, and churning time is 30 minutes.
3. one as claimed in claim 1 prepares BiOI/CdWO4The method of heterojunction photocatalyst, it is characterised in that: the mol ratio of Bismuth trinitrate and cadmium tungstate is 1.0-2.0.
4. one as claimed in claim 1 prepares BiOI/CdWO4The method of heterojunction photocatalyst, it is characterised in that: the mol ratio of Bismuth trinitrate and cadmium tungstate is 1:5:1, preparation BiOI/CdWO4After heterojunction photocatalyst reacts 90min when visible ray, the degradation rate of rhodamine B reaches 90%.
5. one as claimed in claim 3 prepares BiOI/CdWO4The method of heterojunction photocatalyst, it is characterised in that: the mol ratio of Bismuth trinitrate and potassiumiodide is 1:1.
6. one as claimed in claim 1 prepares BiOI/CdWO4The method of heterojunction photocatalyst, it is characterized in that the preparation method of described cadmium tungstate is as follows: get chromium acetate solution, the solution of the sodium wolframate joined etc. mole obtains mixing solutions, stir after evenly and carry out hydro-thermal reaction, hydro-thermal reaction 24 hours at 160 DEG C, after reaction terminates, by sedimentation and filtration, washing, dries, obtains cadmium tungstate.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076367A (en) * | 2016-06-12 | 2016-11-09 | 江苏大学 | One prepares CdS/CoWO4the method of heterojunction composite photocatalyst |
| CN106495380A (en) * | 2016-12-21 | 2017-03-15 | 沈阳化工大学 | A kind of catalytic degradation organic dyestuff and the method for food additive sunset yellow |
| CN106630326A (en) * | 2016-12-21 | 2017-05-10 | 沈阳化工大学 | Method of utilizing ultrasonic waves and FeWO4 to degrade organic dye azophloxine |
| CN107008467A (en) * | 2017-03-24 | 2017-08-04 | 江苏大学 | The preparation method and purposes of a kind of heterojunction photocatalyst |
| CN107055620A (en) * | 2017-05-11 | 2017-08-18 | 安徽建筑大学 | A kind of method that two one-step hydrothermal prepares CdWO4/MnWO4 composite nano materials |
| CN108786895A (en) * | 2018-07-06 | 2018-11-13 | 兰州大学 | BiOCOOH/g-C3N4Composite photo-catalyst and its preparation method and application |
| CN109092330A (en) * | 2018-08-09 | 2018-12-28 | 齐齐哈尔大学 | CdSQDs@CdIn2S4/CdWO4The preparation of material |
| CN109225282A (en) * | 2018-10-24 | 2019-01-18 | 福建师范大学 | A kind of p-n junction CdWO4/ BiOCl heterojunction photocatalyst, preparation method and its usage |
| CN109794270A (en) * | 2019-01-31 | 2019-05-24 | 江苏大学 | A kind of V2O5The preparation method of/BiOI semiconductor compound photocatalyst |
| CN111151274A (en) * | 2020-01-18 | 2020-05-15 | 河南师范大学 | Catalytic material, preparation method thereof, photocatalyst and production method of hydrogen peroxide |
| CN112958116A (en) * | 2021-02-22 | 2021-06-15 | 西南大学 | Bi2O2.33-CdS composite photocatalyst and preparation process thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076367B (en) * | 2016-06-12 | 2019-01-08 | 江苏大学 | It is a kind of to prepare CdS/CoWO4The method of heterojunction composite photocatalyst |
| CN106076367A (en) * | 2016-06-12 | 2016-11-09 | 江苏大学 | One prepares CdS/CoWO4the method of heterojunction composite photocatalyst |
| CN106495380A (en) * | 2016-12-21 | 2017-03-15 | 沈阳化工大学 | A kind of catalytic degradation organic dyestuff and the method for food additive sunset yellow |
| CN106630326A (en) * | 2016-12-21 | 2017-05-10 | 沈阳化工大学 | Method of utilizing ultrasonic waves and FeWO4 to degrade organic dye azophloxine |
| CN107008467A (en) * | 2017-03-24 | 2017-08-04 | 江苏大学 | The preparation method and purposes of a kind of heterojunction photocatalyst |
| CN107008467B (en) * | 2017-03-24 | 2020-03-31 | 江苏大学 | Preparation method and application of heterojunction photocatalyst |
| CN107055620A (en) * | 2017-05-11 | 2017-08-18 | 安徽建筑大学 | A kind of method that two one-step hydrothermal prepares CdWO4/MnWO4 composite nano materials |
| CN108786895B (en) * | 2018-07-06 | 2020-12-22 | 兰州大学 | BiOCOOH/g-C3N4Composite photocatalyst and preparation method and application thereof |
| CN108786895A (en) * | 2018-07-06 | 2018-11-13 | 兰州大学 | BiOCOOH/g-C3N4Composite photo-catalyst and its preparation method and application |
| CN109092330A (en) * | 2018-08-09 | 2018-12-28 | 齐齐哈尔大学 | CdSQDs@CdIn2S4/CdWO4The preparation of material |
| CN109092330B (en) * | 2018-08-09 | 2021-03-02 | 齐齐哈尔大学 | CdSQDs@CdIn2S4/CdWO4Preparation of the Material |
| CN109225282A (en) * | 2018-10-24 | 2019-01-18 | 福建师范大学 | A kind of p-n junction CdWO4/ BiOCl heterojunction photocatalyst, preparation method and its usage |
| CN109794270A (en) * | 2019-01-31 | 2019-05-24 | 江苏大学 | A kind of V2O5The preparation method of/BiOI semiconductor compound photocatalyst |
| CN109794270B (en) * | 2019-01-31 | 2021-10-08 | 江苏大学 | V-shaped groove2O5Preparation method of/BiOI semiconductor composite photocatalyst |
| CN111151274A (en) * | 2020-01-18 | 2020-05-15 | 河南师范大学 | Catalytic material, preparation method thereof, photocatalyst and production method of hydrogen peroxide |
| CN112958116A (en) * | 2021-02-22 | 2021-06-15 | 西南大学 | Bi2O2.33-CdS composite photocatalyst and preparation process thereof |
| CN112958116B (en) * | 2021-02-22 | 2021-11-19 | 西南大学 | Bi2O2.33-CdS composite photocatalyst and preparation process thereof |
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